Radio Projects
Radio Projects
Contents
|
B'cast/Shortwave
|
|
Scanning
|
|
Outback/Marine
|
|
CB
|
|
Amateur
|
|
Projects
Seek permission before reproducing material. |
|
A collection of homebrew projects for the
amateur radio enthusiast. A few projects include full constructional articles,
but most have just schematic diagrams and a few notes. See photos of many of these items here. If you have difficulties viewing some circuits, please see the note at the bottom of this page.
Projects1. Novel crystal set requires no antenna, earth no trailing wires!2. High quality AM through your FM stereo
3. Hear Amateurs on your Shortwave Radio! receive SSB with ease
4. Hear Amateurs on your FM Radio! As described in Amateur Radio, March 1999
5. Car radio tunes the Amateur Bands Top performance for little outlay
7. 50 MHz to 146 MHz Converter
8. AM Broadcast Band Regenerative Receiver just two transistors!
9. 80m Direct Conversion Receiver beginner's project
10. Super 80 ultra-simple SSB receiver for 3.5 MHz a basic superhet
11. Compact 20 14 MHz direct conversion receiver 12. Wide-swing Variable Crystal Oscillator do more than you thought with crystals
13. Frequency agile 80m CW QRP transmitter now there's no excuse to be rockbound
16. Two Valve 40m CW Transmitter fun junkbox project
18. A two-way Morse practice set your own telegraph system
19. Some simple test equipment to build a must for the homebrewer
20. RF Power Meter for the QRPer measures up to 25 watts
22. 3 - 12 MHz Signal Generator simple local signal source
24. Two Tone Audio Oscillator use for SSB tests
25. 1A Variable Regulated Power Supply A 'must-have' for the experimenter
26. Morse Adaptor for your VHF/UHF FM rig Ideal for QSOs or practice
27. A compact L-match ATU for portable use
28. An end-fed antenna, L-match coupler and resistive bridge for HF one wire, all bands
29. A QRP DX antenna pier + squid pole + wire = QRP DX
30. Build a hanging dipole for two metres ideal for the portable operator
31. A magnetic loop antenna for 80 and 40m an antenna for anywhere, even indoors!
32. A magnetic loop antenna for 40 to 17m local and DX contacts from tight spaces
33. A magnetic loop antenna for 160 to 15m
34. Pedestrian mobile HF antenna
35. The 'Shoddytenna': 160m vertical for portable use
Reading, saving & printing hints 1. The schematic diagrams may be difficult to read for a number of reasons. If the diagram appears large and then shrinks, move your mouse around and click until a square appears on the screen. Clicking this square restores the diagram to its large size and makes it more readable. 2. If you wish, you can save diagrams by right-clicking on it. This is useful if you wish to use it later. Also, some diagrams are clearer if saved than viewed on-screen. 3. The larger schematic diagrams are clearer when printed out than appear on the screen. This applies particularly to the older projects, which have been drawn by hand. To print, select File Print. If printing the larger diagrams, set Page Setup to Landscape so that the whole drawing appears on the one sheet. Schematic diagrams are all in GIF format. They can be saved onto disk by right-clicking on the diagram. To view when off-line, open the file in your internet browser, Windows Paint or any other viewer.
|
